{% if isFramework("javascript", "angular", "react") %}
```js
// a list of column definitions
const colDefs = [{

   // no Header Comp specified, uses the Provided Header Comp
   {headerName: "Athlete", field: "athlete"},
   {headerName: "Sport", field: "sport"},

   // uses Custom Header Comp
   {headerName: "Age", field: "age", headerComponent: MyHeaderComponent}
}]
```
{% /if %}
